rofi/source/dialogs/help-keys.c

/*
 * rofi
 *
 * MIT/X11 License
 * Copyright © 2013-2021 Qball Cow <qball@gmpclient.org>
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#include <config.h>
#include <stdio.h>
#include <stdlib.h>

#include <dirent.h>
#include <errno.h>
#include <limits.h>
#include <signal.h>
#include <string.h>
#include <strings.h>
#include <sys/types.h>
#include <unistd.h>

#include "dialogs/help-keys.h"
#include "helper.h"
#include "rofi.h"
#include "settings.h"
#include "widgets/textbox.h"
#include "xrmoptions.h"

typedef struct {
  char **messages;
  unsigned int messages_length;
} KeysHelpModePrivateData;

static void get_apps(KeysHelpModePrivateData *pd) {
  pd->messages = config_parser_return_display_help(&(pd->messages_length));
}

static int help_keys_mode_init(Mode *sw) {
  if (mode_get_private_data(sw) == NULL) {
    KeysHelpModePrivateData *pd = g_malloc0(sizeof(*pd));
    mode_set_private_data(sw, (void *)pd);
    get_apps(pd);
  }
  return TRUE;
}

static ModeMode
help_keys_mode_result(G_GNUC_UNUSED Mode *sw, int mretv,
                      G_GNUC_UNUSED char **input,
                      G_GNUC_UNUSED unsigned int selected_line) {
  if (mretv & MENU_CUSTOM_COMMAND) {
    int retv = (mretv & MENU_LOWER_MASK);
    return retv;
  }
  return MODE_EXIT;
}
static void help_keys_mode_destroy(Mode *sw) {
  KeysHelpModePrivateData *rmpd =
      (KeysHelpModePrivateData *)mode_get_private_data(sw);
  if (rmpd != NULL) {
    g_strfreev(rmpd->messages);
    g_free(rmpd);
    mode_set_private_data(sw, NULL);
  }
}

static char *_get_display_value(const Mode *sw, unsigned int selected_line,
                                int *state, G_GNUC_UNUSED GList **list,
                                int get_entry) {
  KeysHelpModePrivateData *pd =
      (KeysHelpModePrivateData *)mode_get_private_data(sw);
  *state |= MARKUP;
  if (!get_entry) {
    return NULL;
  }
  return g_strdup(pd->messages[selected_line]);
}
static int help_keys_token_match(const Mode *data, rofi_int_matcher **tokens,
                                 unsigned int index) {
  KeysHelpModePrivateData *rmpd =
      (KeysHelpModePrivateData *)mode_get_private_data(data);
  return helper_token_match(tokens, rmpd->messages[index]);
}

static unsigned int help_keys_mode_get_num_entries(const Mode *sw) {
  const KeysHelpModePrivateData *pd =
      (const KeysHelpModePrivateData *)mode_get_private_data(sw);
  return pd->messages_length;
}

#include "mode-private.h"
Mode help_keys_mode = {.name = "keys",
                       .cfg_name_key = "display-keys",
                       ._init = help_keys_mode_init,
                       ._get_num_entries = help_keys_mode_get_num_entries,
                       ._result = help_keys_mode_result,
                       ._destroy = help_keys_mode_destroy,
                       ._token_match = help_keys_token_match,
                       ._get_completion = NULL,
                       ._get_display_value = _get_display_value,
                       .private_data = NULL,
                       .free = NULL};